ignore/types: add Gentoo eclass type

Eclasses are "ebuild libraries" and generally if you're filtering
for/filtering out an ebuild/eclass, you don't want the other either.

Followup to 4dfea016b9

Closes #2437

CHANGELOG.md

@@ -10,7 +10,7 @@ Unreleased changes. Release notes have not yet been written.
 
 Feature enhancements:
 
-* Added or improved file type filtering for Elixir, Fuchsia, GraphQL
+* Added or improved file type filtering for Elixir, Fuchsia, Gentoo, GraphQL
 
 Bug fixes:
 

crates/ignore/src/default_types.rs

@@ -64,7 +64,7 @@ pub const DEFAULT_TYPES: &[(&str, &[&str])] = &[
     ("dockercompose", &["docker-compose.yml", "docker-compose.*.yml"]),
     ("dts", &["*.dts", "*.dtsi"]),
     ("dvc", &["Dvcfile", "*.dvc"]),
-    ("ebuild", &["*.ebuild"]),
+    ("ebuild", &["*.ebuild", "*.eclass"]),
     ("edn", &["*.edn"]),
     ("elisp", &["*.el"]),
     ("elixir", &["*.ex", "*.eex", "*.exs", "*.heex", "*.leex", "*.livemd"]),